Hi @Paul , Thank you very much for your suggestions. I've tried them with the following results:
C:\beetle_projects\gd32vf103c_start> "C:/embeetle/gnu_riscv_xpack_64b/bin/riscv-none-embed-gdb.exe" warning: Couldn't determine a path for the index cache directory. GNU gdb (xPack GNU RISC-V Embedded GCC, 64-bit) 8.3 Copyright (C) 2019 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later < [ http://gnu.org/licenses/gpl.html | http://gnu.org/licenses/gpl.html ] > This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "--host=x86_64-w64-mingw32 --target=riscv-none-embed". Type "show configuration" for configuration details. For bug reporting instructions, please see: < [ https://github.com/sifive/freedom-tools/issues | https://github.com/sifive/freedom-tools/issues ] >. Find the GDB manual and other documentation resources online at: < [ http://www.gnu.org/software/gdb/documentation/ | http://www.gnu.org/software/gdb/documentation/ ] >. For help, type "help". Type "apropos word" to search for commands related to "word". (gdb) set arch riscv:rv32 The target architecture is assumed to be riscv:rv32 (gdb) tar ext :3333 Remote debugging using :3333 warning: No executable has been specified and target does not support determining executable automatically. Try using the "file" command. 0x08000000 in ?? () (gdb) file "C:/beetle_projects/gd32vf103c_start/build/myApp.elf" A program is being debugged already. Are you sure you want to change the file? (y or n) [answered Y; input not from terminal] Reading symbols from C:/beetle_projects/gd32vf103c_start/build/myApp.elf ... (gdb) load Loading section .init, size 0x236 lma 0x8000000 Loading section .text, size 0x1860 lma 0x8000240 Loading section .sdata2._global_impure_ptr, size 0x4 lma 0x8001aa0 Loading section .init_array, size 0x4 lma 0x8001aa4 Loading section .data, size 0x68 lma 0x8001aa8 Start address 0x800015c, load size 6918 Transfer rate: 808 bytes/sec, 1383 bytes/write. (gdb) monitor reset run cmsis-dap JTAG TLR_RESET cmsis-dap JTAG TLR_RESET cmsis-dap JTAG TLR_RESET JTAG tap: auto0.tap tap/device found: 0x790007a3 (mfg: 0x3d1 (GigaDevice Semiconductor (Beijing)), part: 0x9000, ver: 0x7) Hart 0 didn't run coming out of reset in 1s; dmstatus=0x4f03a2; Increase the timeout with riscv set_reset_timeout_sec. Hart 0 unexpectedly reset! Note: Hart is halted due to the halt-on-reset bit is set, please continue your program by appropriate debugger commands or operations!! (gdb) monitor shutdown shutdown command invoked (gdb) quit A debugging session is active. Inferior 1 [Remote target] will be detached. Quit anyway? (y or n) [answered Y; input not from terminal] Detaching from program: C:/beetle_projects/gd32vf103c_start/build/myApp.elf , Remote target Remote communication error. Target disconnected.: Not a directory. It looks like the firmware flashed successfully. However, the monitor reset run command seems to cause troubles. Unfortunately, the led on the board is not blinking. The firmware I got from Reuben Townsend should make an led blink. I'll send a mail to Reuben (engineer at GigaDevice) to ask him about the upstream OpenOCD support. By the way - if you're interested in this RISC-V development board (the GD32VF103C-START), just let me know. There is currently no European distributor for this board. But I can get you one through my contacts in GigaDevice. Kind regards, Kristof
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